The web ones are easier to search.
 
Here: http://www.japan-parts.eu...1703_air-cleaner#17751
 
I'm surprised they can get the pieces. At a guess i think you'd be looking at about $1000 for the parts to go OEM looking at some of the quotes in Amayama.

About a $1000? That's obnoxious! Doubt it's worth it. Rather try the SARD if that's the case.

It doesn't hurt to ask, but availability is low. Also, I'm not sure exactly which parts you need - someone will have to chime in.

To do a proper OEM intake "restore", you would need every part in the diagram – except for the MAF (22204), which you'd already have, the pipe on the lower right (17752) which is totally unnecessary, and the airbox mounting plate (17851), which I would assume should still exist in your car.
 
The bottom line is: Buying all these bits new will cost at least $1000, or maybe even a bit more. The main airbox alone is almost $650 from Amayama... and for the intake system to work properly, you really should have ALL the resonators and correct pipes. It's a tuned system, and removing any of these bits will spoil that tuning.
 
I'd suggest you get that SARD intake for the moment, then keep scanning yahoo auction in Japan (via Importmonster) until a second-hand OEM setup (hopefully) shows up.  I got mine that way, but I had to wait months to even see one listed.
 
There's a BEAMS equipped SW20 with a SARD intake for sale on Gumtreeright now – and this is how it has been fitted:
 
 
 

mister2
To do a proper OEM intake "restore", you would need every part in the diagram – except for the MAF (22204), which you'd already have, the pipe on the lower right (17752) which is totally unnecessary, and the airbox mounting plate (17851), which I would assume should still exist in your car.
 
The bottom line is: Buying all these bits new will cost at least $1000, or maybe even a bit more. The main airbox alone is almost $650 from Amayama... and for the intake system to work properly, you really should have ALL the resonators and correct pipes. It's a tuned system, and removing any of these bits will spoil that tuning.
 
I'd suggest you get that SARD intake for the moment, then keep scanning yahoo auction in Japan (via Importmonster) until a second-hand OEM setup (hopefully) shows up.  I got mine that way, but I had to wait months to even see one listed.
 
There's a BEAMS equipped SW20 with a SARD intake for sale on Gumtreeright now – and this is how it has been fitted:
 
 
 

Yeah that looks like the best option. And is what I had before but with a regular pod filter.

I'll just do that and see how I go with the SARD.

Thanks again for the feedback everyone. :)

So, I'll be buying the intake very soon.
 
This is the cheapest I found so far: http://www.nextgenautoparts.com/sard/sard-sport-ex-plus-intake/xa59340/i-166866.aspx
 
However, they're not showing all the parts that the intake package comes with, aka the blue MAF adapter as per this photo: https://images-na.ssl-images-amazon.com/images/I/81H8z2qFGdL._SL1500_.jpg
 
I've asked them to confirm if those parts do come with their package, but is it safe to assume it should? Especially considering it's the 59340 package and description states it comes with an adapter.
 
I've also bookmarked this from ages ago: http://store.shopping.yahoo.co.jp/reducar/sard-59340-0.html which looks like 100% the right intake, and I've asked Import Monster if they can help me import it, I couldn't find it via their browse feature.
 
Just wanting to double check that I'll be buying the right part haha. :)

The one on the first link is definitely NOT the right one. It's for earlier NA SW20's, which don't use a MAF.
 
The second link is the right model > SPORTS EX+ MR2 SW20(VVT-i) 3S-GE 97.12〜99.10
The mount in the photo still isn't what you should get with it though, but I assume that's because its a generic photo used for the SARD filters. The correct intake tube with the MAF mount will look like this. (The MAF is already mounted in this one.)
 

 
 

Cool, even though it's the right part number for SARD... that's weird.
 
Anyhow, I'll chase after the 2nd one, it's probably the safer and cheaper option, straight from japan :)
 
Let's hope Import Monster can help!

Most important thing is to ensure the one you get is clearly for (VVT-i) 3S-GE 97.12〜99.10
 
If it's not for a 97.12〜99.10 NA engine with VVTI, it won't have a MAF mount on the intake pipe.
 
 
 
 

Haha yes. 100% that's exactly what I'm doing :)